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Technical Data Sheet
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1772N — VALVE,PRESSURE RELEASE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

1772N: VALVE,PRESSURE RELEASE.

The VALVE,PRESSURE RELEASE is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 4820-00-735-9176, indicating validated use in U.S.

government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
1772N
NSN: 4820-00-735-9176
FSC: 4820 — Valves, Nonpowered
CAGE: 93236 — DRESSER-RAND CO WORTHINGTON COMPRESSOR OPN A JOINT VENTURE (USA)
SPECIFICATIONS
general_characteristics_item_descriptionSTEEL O/A;MECHANICALLY OPERATED;1 PIPE CONNECTION 0.125-27 NPT THD SIZE;THD MTD 1.500-12 UNF THD SIZE;1.500 IN. HEX SHAPE;6.000 IN. O/A LG IN
NSN4820-00-735-9176
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 1772N · OEM ⚠ VERIFY BEFORE ORDERING Gate valves = FULL OPEN or FULL CLOSE only — never throttle. Partial opening causes seat erosion and vibration. ✓ BROKER TIP Rising stem shows valve position visually — easier maintenance. Non-rising stem saves headroom. PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
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GENERAL CHARACTERISTICS ITEM DESCRIPTION: STEEL O/A;MECHANICALLY OPERATED;1 PIPE CONNECTION 0.125-27 NPT THD SIZE;THD MTD 1.500-12 UNF THD SIZE;1.500 IN. HEX SHAPE;6.000 IN. O/A LG IN
TECHNICAL CHARACTERISTICS
GENERAL CHARACTERISTICS ITEM DESCRIPTIONSTEEL O/A;MECHANICALLY OPERATED;1 PIPE CONNECTION 0.125-27 NPT THD SIZE;THD MTD 1.500-12 UNF THD SIZE;1.500 IN. HEX SHAPE;6.000 IN. O/A LG IN
OTHER ITEMS IN FSC 4820 — Valves, Nonpowered
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4820-00-000-0097 4820-00-001-0010 4820-00-001-0020 4820-00-001-0021 4820-00-001-0032 4820-00-001-0037 4820-00-001-0042 4820-00-001-1230
SUBSTITUTES & CROSS-REFERENCES 2
HL17835PC88Reference document
Same NSN cross-reference
Reference document — Secondary reference
UL689Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1772N?
1772N is a VALVE,PRESSURE RELEASE.
What parts can replace 1772N?
There are 2 known substitutes for 1772N: HL17835PC88, UL689. Substitute compatibility should be verified for your specific system.
What is the NSN for 1772N?
1772N is cataloged in the U.S. Government catalog under NSN 4820-00-735-9176. This indicates validated use in U.S. government and defense supply chains.
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